ah, due to checkins for bug 46226.
Ah, darnit. I didn't get these dummy files into the mozilla side. There in source, but didn't update the jar.mn Accepting. Patch to follow.
Created attachment 39495 [details] [diff] [review] adding missing files to jar.mn for proper content loading
Note that the dummy files I am adding with the previous patch don't have real content, they just throw up a thing that says: context-sensitive help: write me! and give the name of the file (e.g. mozilla/extensions/help/resources/locale/en-US)
Checked in dummies. Marking FIXED.
Verified Fixed Linux build 2002020707